Cheap A4 envelope/holder?

[Helbreath]

Anyone know where to buy cheap A4 envelope or clear holders for storage when giving friends/relatives photos?

Look through popular and evergreen, but they are selling at ~$0.20 per brown envelope, too expensive for me. Even if i buy like 50 pics also no discount.

Thanks

 

[SNAG]

You may want to buy from some bulk office suppliers. I'll try to get some names for you, but please PM me to remember me about this, I may forget about this.